Finding the Fourth Proportional to 20,535,124.28, 28,340,045.34 and 11,714,769.68
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Solution
The fourth proportional to 20,535,124.28, 28,340,045.34 and 11,714,769.68 is: 16,167,279.99
Step by Step Solution
- Step 1: Write the proportion equation
20,535,124.28 : 28,340,045.34 = 11,714,769.68 : x - Step 2: Convert to fraction form
20,535,124.28/28,340,045.34 = 11,714,769.68/x - Step 3: Cross multiply
20,535,124.28x = 28,340,045.34 × 11,714,769.68 - Step 4: Simplify right side
20,535,124.28x = 331,997,103,878,857.25 - Step 5: Solve for x
x = 331,997,103,878,857.25/20,535,124.28 - Step 6: Final answer
x = 16,167,279.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.